author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 20:36:02 +0200 | |
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permissions | -rw-r--r-- |
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// |
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#include "msvcacheentry.h" |
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/** |
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* NewLC() |
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* @param None. |
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* @return CMsvCacheEntry* : a handle to a new cache entry. |
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* |
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* |
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*/ |
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CMsvCacheEntry* CMsvCacheEntry::NewLC() |
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{ |
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CMsvCacheEntry* self = new(ELeave) CMsvCacheEntry(); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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return self; |
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} |
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/** |
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* NewL() |
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* @param None. |
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* @return CMsvCacheEntry* : a handle to a new cache entry. |
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* |
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* |
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*/ |
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CMsvCacheEntry* CMsvCacheEntry::NewL() |
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{ |
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CMsvCacheEntry* self = NewLC(); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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/** |
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* ConstructL() |
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* @param None. |
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* @return None. |
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* |
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* Second phase construction. |
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*/ |
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void CMsvCacheEntry::ConstructL() |
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{ |
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} |
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/** |
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* CMsvCacheEntry() |
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* @param None. |
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* @return None. |
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* |
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* Constructor. |
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*/ |
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CMsvCacheEntry::CMsvCacheEntry() |
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{ |
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} |
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/** |
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* ~CMsvCacheEntry() |
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* @param None. |
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* @return None. |
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* |
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* Destructor. |
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*/ |
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CMsvCacheEntry::~CMsvCacheEntry() |
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{ |
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delete iDescriptionBuffer; |
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delete iDetailsBuffer; |
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if(iChildIdArray) |
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{ |
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iChildIdArray->Close(); |
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delete iChildIdArray; |
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iChildIdArray = NULL; |
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} |
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} |
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/** |
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* ResetEntry() |
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* @param None. |
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* @return None. |
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* |
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* The function resets a cache entry to zero/default values. |
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*/ |
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void CMsvCacheEntry::ResetEntry() |
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{ |
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delete iDescriptionBuffer; |
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iDescriptionBuffer = NULL; |
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delete iDetailsBuffer; |
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110 |
iDetailsBuffer = NULL; |
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|
111 |
|
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iEntry = TMsvEntry(); |
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iFlags = EMsvServerEntryClearFlag; |
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114 |
|
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iStoreReaderCount = 0; |
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116 |
|
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if(iChildIdArray) |
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118 |
{ |
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iChildIdArray->Close(); |
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delete iChildIdArray; |
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iChildIdArray = NULL; |
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} |
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123 |
} |
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124 |
|
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125 |
|
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126 |
|
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127 |
/** |
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* SetEntryL() |
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* @param TMsvEntry& : the TMsvEntry with the details to be copied to the cache entry. |
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* @return None. |
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* |
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* The function sets the TMsvEntry, iDescription and iDetails fields of the cache entry |
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* to that of the passed entry. |
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*/ |
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void CMsvCacheEntry::SetEntryL(TMsvEntry& aEntry) |
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136 |
{ |
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iEntry = aEntry; |
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if(!iDescriptionBuffer) |
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139 |
{ |
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iDescriptionBuffer = aEntry.iDescription.AllocL(); |
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141 |
} |
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else if (aEntry.iDescription.Length() > iDescriptionBuffer->Des().MaxLength()) |
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143 |
{ |
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iDescriptionBuffer = iDescriptionBuffer->ReAllocL(aEntry.iDescription.Length()); |
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145 |
} |
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146 |
|
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147 |
|
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if(!iDetailsBuffer) |
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149 |
{ |
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iDetailsBuffer = aEntry.iDetails.AllocL(); |
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151 |
} |
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152 |
else if (aEntry.iDetails.Length() > iDetailsBuffer->Des().MaxLength()) |
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153 |
{ |
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iDetailsBuffer = iDetailsBuffer->ReAllocL(aEntry.iDetails.Length()); |
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155 |
|
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156 |
} |
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157 |
|
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158 |
*iDescriptionBuffer = aEntry.iDescription; |
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*iDetailsBuffer = aEntry.iDetails; |
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160 |
|
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161 |
iEntry.iDescription.Set(*iDescriptionBuffer); |
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iEntry.iDetails.Set(*iDetailsBuffer); |
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163 |
} |
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164 |
|
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165 |
|
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166 |
/* |
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167 |
* DupNDestroyL() |
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168 |
* |
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169 |
*/ |
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170 |
void CMsvCacheEntry::DupNDestroyL(CMsvCacheEntry*& aEntry) |
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171 |
{ |
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172 |
SetEntryL(aEntry->Entry()); |
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173 |
iFlags = aEntry->iFlags; |
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174 |
iStoreReaderCount = aEntry->iStoreReaderCount; |
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175 |
iLastChange = aEntry->iLastChange; |
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176 |
iCreated = aEntry->iCreated; |
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177 |
iOwnerId = aEntry->iOwnerId; |
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178 |
iChildIdArray = aEntry->iChildIdArray; |
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aEntry->iChildIdArray = NULL; |
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180 |
} |
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181 |
|
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182 |
|
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183 |
|
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184 |
|
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185 |
/** |
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186 |
* LockEntry() |
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187 |
* @param None. |
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188 |
* @return TInt : KErrNone on success, KErrLocked if the entry is already locked. |
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189 |
* |
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190 |
* The function locks the cache entry if not already locked. |
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191 |
*/ |
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192 |
TInt CMsvCacheEntry::LockEntry() |
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193 |
{ |
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194 |
if (IsEntryLocked()) |
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195 |
{ |
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196 |
return KErrLocked; |
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197 |
} |
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198 |
|
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199 |
iFlags |= EMsvServerEntryLockFlag; |
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200 |
return KErrNone; |
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201 |
} |
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202 |
|
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|
203 |
|
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204 |
/** |
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205 |
* LockStore() |
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* @param None. |
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* @return TInt : KErrNone on success, KErrLocked if the store entry is already locked. |
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208 |
* |
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209 |
* The function locks the store entry if not already locked. |
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210 |
*/ |
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211 |
TInt CMsvCacheEntry::LockStore() |
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212 |
{ |
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213 |
if (IsStoreLocked()) |
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214 |
{ |
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215 |
return KErrLocked; |
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216 |
} |
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217 |
|
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iFlags |= EMsvServerEntryStoreLockFlag; |
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return KErrNone; |
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} |
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|
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|
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|
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/** |
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* LockEntryAndStore() |
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* @param None. |
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* @return TInt : KErrNone on success, KErrLocked if the store and cache entry is already locked. |
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* |
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* The function locks the store and cache entry if not already locked. |
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*/ |
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TInt CMsvCacheEntry::LockEntryAndStore() |
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{ |
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if (IsEntryOrStoreLocked()) |
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{ |
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return KErrLocked; |
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} |
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|
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iFlags |= (EMsvServerEntryStoreLockFlag | EMsvServerEntryLockFlag); |
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return KErrNone; |
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} |
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|
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|
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|
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/** |
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* CopyEntryL() |
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* @param const TMsvEntry& : the entry to be changed to. |
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* @param TBool& : output parameter set to ETrue if any private details (iDesciption |
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* and iDetails) have been changed. |
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* @return None. |
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* |
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* The function copies details from the passed TMsvEntry to the cache entry's TMsvEntry. |
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* It reallocates buffer sizes if there is difference between them. |
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*/ |
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void CMsvCacheEntry::CopyEntryL(const TMsvEntry& aEntry, TBool& aChangedPrivateInfo) |
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{ |
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TBool changeDes = (aEntry.iDescription!=*iDescriptionBuffer); |
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TBool changeDet = (aEntry.iDetails!=*iDetailsBuffer); |
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|
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aChangedPrivateInfo = changeDes || changeDet; |
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|
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//Only increase the buffer size, not shrink so as to allow rollback |
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TBool isMemoryAllocationDone = EFalse; |
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HBufC* bkpDescriptionBuffer = iDescriptionBuffer; |
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if (changeDes && aEntry.iDescription.Length() > iDescriptionBuffer->Des().MaxLength()) |
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{ |
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iDescriptionBuffer = HBufC::NewL(aEntry.iDescription.Length()); |
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isMemoryAllocationDone = ETrue; |
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} |
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|
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if (changeDet && aEntry.iDetails.Length() > iDetailsBuffer->Des().MaxLength()) |
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{ |
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TRAPD(err, iDetailsBuffer = iDetailsBuffer->ReAllocL(aEntry.iDetails.Length())); |
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if(err) |
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{ |
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if(isMemoryAllocationDone) |
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{ |
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delete iDescriptionBuffer; |
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iDescriptionBuffer = bkpDescriptionBuffer; |
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} |
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User::Leave(err); |
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} |
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} |
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|
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if(isMemoryAllocationDone) |
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{ |
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delete bkpDescriptionBuffer; |
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} |
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//Copy the data without leaving |
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if (changeDes) |
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{ |
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*iDescriptionBuffer = aEntry.iDescription; |
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} |
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|
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if (changeDet) |
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{ |
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*iDetailsBuffer = aEntry.iDetails; |
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} |
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|
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iEntry=aEntry; |
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iEntry.iDescription.Set(*iDescriptionBuffer); |
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iEntry.iDetails.Set(*iDetailsBuffer); |
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} |
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|
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|
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|
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/** |
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* RollBackCopyEntry() |
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* @param const TMsvEntry& : the entry to be changed to. |
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* @return None. |
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* |
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* |
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*/ |
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void CMsvCacheEntry::RollBackCopyEntry(const TMsvEntry& aEntry) |
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{ |
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__ASSERT_DEBUG(iDescriptionBuffer->Des().MaxLength() >= aEntry.iDescription.Length(), PanicServer(EMsvBadRollBackCopy1)); |
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__ASSERT_DEBUG(iDetailsBuffer->Des().MaxLength() >= aEntry.iDetails.Length(), PanicServer(EMsvBadRollBackCopy2)); |
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|
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Mem::Copy(&iEntry, &aEntry, sizeof(TMsvEntry)); |
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|
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*iDescriptionBuffer = aEntry.iDescription; |
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*iDetailsBuffer = aEntry.iDetails; |
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|
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iEntry.iDescription.Set(*iDescriptionBuffer); |
8e480a14352b
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
iEntry.iDetails.Set(*iDetailsBuffer); |
8e480a14352b
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
325 |
} |